Improvement in molding-machines



O. H. WARREN;

Momma MAQHINE. No4.179,436. Patented July 4,1876.

WITNESSES IJV'V'EJVTOR M (1 4Q M I -4--. .HttorMI/ei NFETERS.PHcrO-LITNOGRAPMER, WASHINGTON. D c.

PATENT OrFIo CHARLES H. WARREN, OF TOLEDO, OHIO.

IMPROVEMENT IN MOLDING-MACHINES.

Specification forming part of Letters Patent No. 179,436, dated July 4,1876; application filed December 3, 1875.

' To all whom it may concern:

Be it known that 1, CHARLES H. WARREN, of Toledo, in the county of Lucasand in the State of Ohio, have invented certain new and usefulImprovements in Molding-Machines; and do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangementof a machine for making Wash-boards, as will be hereinafter more fullyset forth. I

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in whichFigure l is a plan view, and Fig. 2 a side elevation, of my machine.

The bed A and feed-works of the machine contained in the frame B areconstructed in the ordinary Way for planing-machines having twohorizontal cutter-heads, O and D, one dressing the under side and theother dressing the upper side of the board. The upper head D is locatedbetween the two feed-rollers E E,

and provided with one corrugated knife, a, and one or more smoothknives, b.

It is found that the smooth knives, in combination with the corrugatedknife, not only allow the machine to work much easier, but slightlydressing off the top of the corrugations, making them all ofa height,thus making the board of uniform thickness. In connection with this Iuse two vertical shapingheads, G G, that are arranged the properdistance apart, and perform the double function of making the board aproper width, and also the required shape on the edges.

Over the rear part of the machine is a horizontal arbor, d, providedwith two saws, H H, which cut a small groove in each edge of the board,for the purpose of receiving the and brought erated by the ordinary edgeof the folded zinc in its proper place, said sheet-zinc being corrugatedto conform to the corrugation of the board, and fastened thereto, asabove stated, after the board has been cut up into proper length forwashboards.

The operation is as follows: The lumber being taken from the pile in itsrough state, and passing through the machine it is corrugated to athickness by the two horizontal planer-heads, the corrugated and smoothknives a b dressing the upper side, and the lower head 0 dressing theopposite side, of the board. In passing through, the board comes incontact with the two vertical heads'G G, which brings the board to theproper width, also giving it the proper shape or finish on the edge, andas it continues to pass through it comes in contact with the saws H onthe horizontal saw-arbor, which cuts small grooves in the edge of theboard, thus completing the work at one operation, making it ready to becut up in proper length, and receive the zinc and sides or legs, whichcompletes the washboard ready for market.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The combination of the cutter head D, havin g corrugated knife a andsmooth knife I), the cutter-head 0 having one or more smooth knives, theshaping-heads G G, and the shaft D, having saws H H, all constructed andarranged with respect to the frame B, and opgears and belts, whereby thelumber inthe rough is passed through and formed into wash-boards at oneoperation, as

set forth.

In testimony that I claim the foregoing I have hereunto set my hand this15th day of October, 1875.

Y O. H. WARREN. Witnesses:

E. W. TOLERTON, F. A. KUMLER.

